Source code for pyNastran.converters.stl.stl_reshape

from copy import deepcopy
from docopt import docopt

import pyNastran
from pyNastran.converters.stl.stl import read_stl

[docs] def main(): # --ascii <fmt> doesn't work for binary properly, so we set: # --ascii False msg = '' msg += 'Usage:\n' msg += ' stl_reshape [--ascii <fmt>] <in_stl_filename> <out_stl_filename>\n' msg += ' stl_reshape [--ascii <fmt>] [--xy | --yz | --xz] [--scale S] <in_stl_filename> <out_stl_filename>\n' msg += ' stl_reshape [--ascii <fmt>] [--xscale X] [--yscale Y] [--zscale Z] <in_stl_filename> <out_stl_filename>\n' msg += ' stl_reshape [--ascii <fmt>] --delta <xshift> <yshift> <zshift> <in_stl_filename> <out_stl_filename>\n' msg += ' stl_reshape [--ascii <fmt>] --mirror <xyz> <tol> <in_stl_filename> <out_stl_filename>\n' msg += ' stl_reshape [--ascii <fmt>] --flip_normals <in_stl_filename> <out_stl_filename>\n' msg += ' stl_reshape [--ascii <fmt>] --stats <in_stl_filename>\n' #msg += ' stl_reshape [--ascii <fmt>] <in_stl_filename> <out_stl_filename>\n' msg += ' stl_reshape -h | --help\n' msg += ' stl_reshape -v | --version\n' msg += '\n' msg += 'Options:\n' msg += ' -h, --help show this help message and exit\n' msg += " -v, --version show program's version number and exit\n" msg += ' --ascii writes the model is ascii\n' msg += ' fmt the sscii format; False -> binary\n' msg += ' --scale S scale the xyz values by S\n' msg += ' --xy flip the x and y axes (pick one)\n' msg += ' --yz flip the y and z axes (pick one)\n' msg += ' --xz flip the x and z axes (pick one)\n' msg += ' --xscale X scale the x values by X (use \'-1.0\' if < 0)\n' msg += ' --yscale Y scale the y values by Y (use \'-1.0\' if < 0)\n' msg += ' --zscale Z scale the z values by Z (use \'-1.0\' if < 0)\n' msg += ' --delta shift the model some <xshift,yshift,shift>\n' msg += ' xshift shift the model by xshift (use \'-1.0\' if < 0)\n' msg += ' yshift shift the model by yshift (use \'-1.0\' if < 0)\n' msg += ' zshift shift the model by zshift (use \'-1.0\' if < 0)\n' msg += ' --mirror create a mirror model\n' msg += ' xyz the x, y, or z direction to mirror about\n' msg += ' tol the tolerance\n' msg += ' --flip_normals flip the normals of the elements\n' msg += ' --stats print the min/max locations\n' msg += ' in_stl_filename the input filename\n' msg += ' out_stl_filename the output filename\n' ver = str(pyNastran.__version__) data = docopt(msg, version=ver) print(data) stl_reshape(data)
[docs] def stl_reshape(data): if '--xy' not in data: data['--xy'] = False if '--yz' not in data: data['--yz'] = False if '--xz' not in data: data['--xz'] = False if '--scale' not in data: data['--scale'] = None if '--xscale' not in data: data['--xscale'] = None if '--yscale' not in data: data['--yscale'] = None if '--zscale' not in data: data['--zscale'] = None if '<xshift>' not in data: data['<xshift>'] = None if '<yshift>' not in data: data['<yshift>'] = None if '<zshift>' not in data: data['<zshift>'] = None if '--stats' not in data: data['--stats'] = None if '--mirror' not in data: data['--mirror'] = None if '--flip_normals' not in data: data['--flip_normals'] = None in_stl_filename = data['<in_stl_filename>'] out_stl_filename = data['<out_stl_filename>'] assert in_stl_filename != out_stl_filename stl = read_stl(in_stl_filename) if data['<fmt>'] in ['False', False]: is_binary = True fmt = None else: fmt = data['<fmt>'] is_binary = False print('is_binary=%s' % is_binary) if data['--xy'] or data['--yz'] or data['--xz']: scale = 1. if data['--scale'] is not None: scale = float(data['--scale']) if data['--xy']: assert data['--yz'] is False assert data['--xz'] is False axes = 'xy' elif data['--yz']: assert data['--xy'] is False assert data['--xz'] is False axes = 'yz' elif data['--xz']: assert data['--xy'] is False assert data['--yz'] is False axes = 'xz' #print('flip_axes = %r' % axes) #print(data) stl.flip_axes(axes, scale) elif data['--xscale'] or data['--yscale'] or data['--zscale']: xscale = 1. yscale = 1. zscale = 1. if data['--xscale'] is not None: xscale = float(data['--xscale'].strip("'")) if data['--yscale'] is not None: yscale = float(data['--yscale'].strip("'")) if data['--zscale'] is not None: zscale = float(data['--zscale'].strip("'")) x = deepcopy(stl.nodes[:, 0]) y = deepcopy(stl.nodes[:, 1]) z = deepcopy(stl.nodes[:, 2]) stl.nodes[:, 0] = x * xscale stl.nodes[:, 1] = y * yscale stl.nodes[:, 2] = z * zscale elif data['<xshift>'] or data['<yshift>'] or data['<zshift>']: xshift = 1. yshift = 1. zshift = 1. if data['<xshift>'] is not None: if isinstance(xshift, str): xshift = float(data['<xshift>'].strip("'")) else: xshift = float(data['<xshift>']) if data['<yshift>'] is not None: if isinstance(xshift, str): yshift = float(data['<yshift>'].strip("'")) else: yshift = float(data['<yshift>']) if data['<zshift>'] is not None: if isinstance(xshift, str): zshift = float(data['<zshift>'].strip("'")) else: zshift = float(data['<zshift>']) print('delta = (%s, %s, %s)' % (xshift, yshift, zshift)) stl.nodes[:, 0] += xshift stl.nodes[:, 1] += yshift stl.nodes[:, 2] += zshift elif data['--scale']: scale = float(data['--scale']) stl.nodes *= scale elif data['--stats']: xmax, ymax, zmax = stl.nodes.max(axis=0) xmin, ymin, zmin = stl.nodes.min(axis=0) print('xyz_max = (%g, %g, %g)' % (xmax, ymax, zmax)) print('xyz_min = (%g, %g, %g)' % (xmin, ymin, zmin)) return elif data['--mirror']: #plane = data['plane'] #assert plane in ['xy', 'yz', 'xz'], 'plane=%r' % plane xyz = data['<xyz>'] tol = float(data['<tol>']) stl.create_mirror_model(xyz, tol) elif data['--flip_normals']: stl.flip_normals() else: raise RuntimeError('unsupported reshape...data=%s' % data) stl.write_stl(out_stl_filename, is_binary=is_binary, float_fmt=fmt)
if __name__ == '__main__': # pragma: no cover main()